Henry m



(No Model) H. M. MINNIS.

CALCULATING MACHINE.

No. 593,675. Patented Nov, 16, 1897.

WITNESSES: INVENTOR ATTORNEY.

m: NORRIS PETERS co, mmmuma. WASNINGTON. n, c.,

lliviTEn STnT s PATENT OEEIcE.

HENRY M. MINNIS, OE WYLIE, TEXAS, ASSIGNOR OE ONE-HALF TO TOM O.

STAPLES, OE SAME PLACE.

CALCULATING=MACHBNE.

SPECIFICATION forming part of Letters Patent No. 593,67 5, dated November 16, 1897.

Application filed November 30, 1896. Serial No. 613,934. (No model.)

To all whom, it may concern.-

Be it known that I, HENRY M. MINNIS, a citizen of the United States, residing at Wylie, in the county of Collin and State of Texas, have invented certain Improvements in CalculatingWIachines, of which the following is a specification.

This invention relates to machines for making rapid and accurate calculations, and to that class of machines employing rotary dials and suitable indicating and operative devices.

The invention consists of the novel combination and construction of parts hereinafter fully described, and pointed out in the claims.

Reference is had to the accompanying drawings, forming a part of this specification.

Figure 1 is a plan View in detail, showing enough figures to illustrate the use of the machine. Fig. 2 is a vertical sectional view. Fig. 3 is a side elevation of the registeringp111.

Similar characters of reference indicate the same parts throughout the several views.

The device is mounted on a suitable board A, which may be made of wood or other material. A socket R is inserted in the center of this board. A disk B, having a suitable aperture in the center thereof, is placed on the socket. A disk H is placed next to the disk B and rests on the annular shoulder O on the socket R. Another disk K is placed next to disk H on an annular shoulder g on socket R. Disk H is smaller in diameter than disk B and disk K is smaller than disk H. A nut 11 rests on top of socket R. A socketbolt Z), having a head countersunk in board A, runs up through socket E. An arm M is pivoted on bolt 12, and is held on the bolt by a nut a. This arm is made of some metal that will be elastic and is made thin near the pivot. Nut 01 is screwed down to clamp and hold disk K stationary. \Vashers are to be added, if necessary. Disks H and B are made to rotate. Disk H has a row of holes near the outer rim. Arack is made on the'rim of disk B. Arm M has a pin 0% inserted therein and pointed downward and adapted to register in the holes about the rim of disk H. Pin m is beveled. near the point, so that it will catch in the holes and carry disk H around when turned in the direction of the hands of a clock and will slide over these holes when turned in the opposite direction. Arm M has a suitable tip or button a, by which it is operated. Disk B is operated by means of a bar E, which is pivoted to a lever E, which is pivoted on the board A. This board is cut away so that lever F will have space in which to be operated. A spiral spring P is attached to bar E and to board A. A recess is out in board A for spring P and bar E, and these parts are covered over, except the tip 4*, which projects up and is adapted to catch in the teeth on the rim of disk B. A slot is cut in the covering of the recesses in the wood for the movement of tip r. A pull on lever F will move disk B one tooth, and this counts one hundred. Every time lever F is pulled the tip 0 catches behind a tooth. W'hen lever F is released, spring P will draw bar E and lever F back in place. An arm X is attached to disk H and has the outer end beveled and rounded, so that it will press back the bent-up portion of lever F, this lever being bent up for this purpose. WVhen arm X passes the ben t-up portion of lever F, lever F moves far enough to cause bar E to move disk B one tooth. This counts one hundred also. Another short arm D is attached to disk B, and another disk W is mounted adjacent to disk B and has a rack on its rim. Arm D operates this disk. When disk 13 turns around once, the arm X turns disk XV one tooth. This counts ten thousand. Every rotation of disk B causes disk W to turn one tooth and consequently count ten thousand. Adjacent to each is written or printed or stamped a number beginning with 10,000. The numbers will then run 10,000, 20,000, 30,000, 4.0,000, 850., up to 250,000, and further, if desirable. The disks are to be made of any suitable material and may be of any practical size. Each disk bears a row of figures, as illustrated. Disk K remains stationary. For convenience in locating the numbers on disks K and H a circle of larger figures is placed by fives on the inside of the figures on disk K. For counting figures in one, two, and three columns disks K and H are used; in four columns use disks K, H, and B; in more than four columns use all the disks.

The operation is as follows: To commence counting, turn disk Ill until 100 on disk ll is even with 100 on disk K. For units and tens follow disk it around till the number to be counted is found. Then with arm M turn disk ll until this number comes to 100 on disk For hundreds and thousands move disk l; by means of lever F until the number of hundreds or thousands on disk 13 comes even with 100 on disk li. Every pressure of the linger on lever ll moves disk 13 one tooth and counts one hundred. This operation is repeated until, all the numbers are counted. Disk 1; must be' rotated entirely around to count ten thousand. Disk \V counts by ten thousands.

llaving fully described my invention, what l claim as new, and desire to secure by Let tors Patent, is

1. A ealeulating-machine having a suitable base-board, a socket provided with a series of annular shoulders thereon,three disks mounted on said socket and said shoulders, a pivotbolt in said socket, an arm pivoted on said bolt and provided with a pin adapted to op erate the middle one ol. said disks, a nut for clamping the top disk, the bottom disk having teeth on the outer edge, a lever pivoted on said board, a bar pivoted on said lever, said bar having a projection adapted to engage said teeth, and a spring adapted to draw said bar in place, said disks being arranged in tiers leaving the outer portion of each disk below exposed, said exposed port-ions having rows ol figures printed or engraved thereon.

2. In a caleulatiiig-inaehine the eombination of a suit-able base board, a bearingsoeket in said board provided with a series of annular shoulders, a plurality of disks arranged in concentric tiers mounted on said socket, the outer edge of each disk having a circle of ligures printed or engraved thereon, a pivot-bolt mounted in said socket, an arm pivoted on said bolt and provided with a pin adapted to operate the middle one of said disks, the bottom disks hz'ivi'ng teeth on the edge, a lever pivoted on said board, a springactuated bar pivoted on said lever provided with a projection adapted to engage said teeth, another disk bearing larger numbers than said first-named disks provided with a rack on its rim, and an arm mounted on the bottom of one of said former disks adapted to engage said rack.

Acalculating-iiiaehinehavingasuitable baseboard, a socket provided with a series ol? annular shoulders tl'iereomthree disks moun ted on said socket and said shoulders, a pivotbolt in said socket, an arm pivoted, on said bolt and provided with a pin adapted to operate the middle one of said disks, a nut t'or clamping the top disk, the bottom disk having teeth on the outer edge, a lever pivoted on said board, a bar pivoted on said lever, said bar having a projection adapted to engage said teeth, a spring adapted to draw said bar in place, said disk being arranged in tiers leaving the outer portion of each disk below exposed, said exposed portions having rows of figures printed or engraved thereon, another disk bearing larger numbers than said firsteiamed disks, mounted on said board adjacent to said bottom disk, and an arm mounted on said bottom disk adapted to ro tate said disk.

In testimony that I claim the foregoing as my invention I have hereunto set my hand this Sl-th day of llOVOIl'llJOl, 18%.

HENRY llilNNlti.

\Vitn esses:

J. ill. Mo'rnnnsnimo, ll inlzmlu 'l. Fox. 

